|  | /* | 
|  | * Copyright (C) 2013 Red Hat | 
|  | * Author: Rob Clark <robdclark@gmail.com> | 
|  | * | 
|  | * Permission is hereby granted, free of charge, to any person obtaining a | 
|  | * copy of this software and associated documentation files (the "Software"), | 
|  | * to deal in the Software without restriction, including without limitation | 
|  | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | 
|  | * and/or sell copies of the Software, and to permit persons to whom the | 
|  | * Software is furnished to do so, subject to the following conditions: | 
|  | * | 
|  | * The above copyright notice and this permission notice (including the next | 
|  | * paragraph) shall be included in all copies or substantial portions of the | 
|  | * Software. | 
|  | * | 
|  | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
|  | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
|  | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL | 
|  | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | 
|  | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | 
|  | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | 
|  | * SOFTWARE. | 
|  | */ | 
|  |  | 
|  | #ifndef __MSM_DRM_H__ | 
|  | #define __MSM_DRM_H__ | 
|  |  | 
|  | #include "drm.h" | 
|  |  | 
|  | #if defined(__cplusplus) | 
|  | extern "C" { | 
|  | #endif | 
|  |  | 
|  | /* Please note that modifications to all structs defined here are | 
|  | * subject to backwards-compatibility constraints: | 
|  | *  1) Do not use pointers, use __u64 instead for 32 bit / 64 bit | 
|  | *     user/kernel compatibility | 
|  | *  2) Keep fields aligned to their size | 
|  | *  3) Because of how drm_ioctl() works, we can add new fields at | 
|  | *     the end of an ioctl if some care is taken: drm_ioctl() will | 
|  | *     zero out the new fields at the tail of the ioctl, so a zero | 
|  | *     value should have a backwards compatible meaning.  And for | 
|  | *     output params, userspace won't see the newly added output | 
|  | *     fields.. so that has to be somehow ok. | 
|  | */ | 
|  |  | 
|  | #define MSM_PIPE_NONE        0x00 | 
|  | #define MSM_PIPE_2D0         0x01 | 
|  | #define MSM_PIPE_2D1         0x02 | 
|  | #define MSM_PIPE_3D0         0x10 | 
|  |  | 
|  | /* The pipe-id just uses the lower bits, so can be OR'd with flags in | 
|  | * the upper 16 bits (which could be extended further, if needed, maybe | 
|  | * we extend/overload the pipe-id some day to deal with multiple rings, | 
|  | * but even then I don't think we need the full lower 16 bits). | 
|  | */ | 
|  | #define MSM_PIPE_ID_MASK     0xffff | 
|  | #define MSM_PIPE_ID(x)       ((x) & MSM_PIPE_ID_MASK) | 
|  | #define MSM_PIPE_FLAGS(x)    ((x) & ~MSM_PIPE_ID_MASK) | 
|  |  | 
|  | /* timeouts are specified in clock-monotonic absolute times (to simplify | 
|  | * restarting interrupted ioctls).  The following struct is logically the | 
|  | * same as 'struct timespec' but 32/64b ABI safe. | 
|  | */ | 
|  | struct drm_msm_timespec { | 
|  | __s64 tv_sec;          /* seconds */ | 
|  | __s64 tv_nsec;         /* nanoseconds */ | 
|  | }; | 
|  |  | 
|  | /* Below "RO" indicates a read-only param, "WO" indicates write-only, and | 
|  | * "RW" indicates a param that can be both read (GET_PARAM) and written | 
|  | * (SET_PARAM) | 
|  | */ | 
|  | #define MSM_PARAM_GPU_ID     0x01  /* RO */ | 
|  | #define MSM_PARAM_GMEM_SIZE  0x02  /* RO */ | 
|  | #define MSM_PARAM_CHIP_ID    0x03  /* RO */ | 
|  | #define MSM_PARAM_MAX_FREQ   0x04  /* RO */ | 
|  | #define MSM_PARAM_TIMESTAMP  0x05  /* RO */ | 
|  | #define MSM_PARAM_GMEM_BASE  0x06  /* RO */ | 
|  | #define MSM_PARAM_PRIORITIES 0x07  /* RO: The # of priority levels */ | 
|  | #define MSM_PARAM_PP_PGTABLE 0x08  /* RO: Deprecated, always returns zero */ | 
|  | #define MSM_PARAM_FAULTS     0x09  /* RO */ | 
|  | #define MSM_PARAM_SUSPENDS   0x0a  /* RO */ | 
|  | #define MSM_PARAM_SYSPROF    0x0b  /* WO: 1 preserves perfcntrs, 2 also disables suspend */ | 
|  | #define MSM_PARAM_COMM       0x0c  /* WO: override for task->comm */ | 
|  | #define MSM_PARAM_CMDLINE    0x0d  /* WO: override for task cmdline */ | 
|  | #define MSM_PARAM_VA_START   0x0e  /* RO: start of valid GPU iova range */ | 
|  | #define MSM_PARAM_VA_SIZE    0x0f  /* RO: size of valid GPU iova range (bytes) */ | 
|  | #define MSM_PARAM_HIGHEST_BANK_BIT 0x10 /* RO */ | 
|  | #define MSM_PARAM_RAYTRACING 0x11 /* RO */ | 
|  | #define MSM_PARAM_UBWC_SWIZZLE 0x12 /* RO */ | 
|  | #define MSM_PARAM_MACROTILE_MODE 0x13 /* RO */ | 
|  | #define MSM_PARAM_UCHE_TRAP_BASE 0x14 /* RO */ | 
|  | /* PRR (Partially Resident Region) is required for sparse residency: */ | 
|  | #define MSM_PARAM_HAS_PRR    0x15  /* RO */ | 
|  | /* MSM_PARAM_EN_VM_BIND is set to 1 to enable VM_BIND ops. | 
|  | * | 
|  | * With VM_BIND enabled, userspace is required to allocate iova and use the | 
|  | * VM_BIND ops for map/unmap ioctls.  MSM_INFO_SET_IOVA and MSM_INFO_GET_IOVA | 
|  | * will be rejected.  (The latter does not have a sensible meaning when a BO | 
|  | * can have multiple and/or partial mappings.) | 
|  | * | 
|  | * With VM_BIND enabled, userspace does not include a submit_bo table in the | 
|  | * SUBMIT ioctl (this will be rejected), the resident set is determined by | 
|  | * the the VM_BIND ops. | 
|  | * | 
|  | * Enabling VM_BIND will fail on devices which do not have per-process pgtables. | 
|  | * And it is not allowed to disable VM_BIND once it has been enabled. | 
|  | * | 
|  | * Enabling VM_BIND should be done (attempted) prior to allocating any BOs or | 
|  | * submitqueues of type MSM_SUBMITQUEUE_VM_BIND. | 
|  | * | 
|  | * Relatedly, when VM_BIND mode is enabled, the kernel will not try to recover | 
|  | * from GPU faults or failed async VM_BIND ops, in particular because it is | 
|  | * difficult to communicate to userspace which op failed so that userspace | 
|  | * could rewind and try again.  When the VM is marked unusable, the SUBMIT | 
|  | * ioctl will throw -EPIPE. | 
|  | */ | 
|  | #define MSM_PARAM_EN_VM_BIND 0x16  /* WO, once */ | 
|  |  | 
|  | /* For backwards compat.  The original support for preemption was based on | 
|  | * a single ring per priority level so # of priority levels equals the # | 
|  | * of rings.  With drm/scheduler providing additional levels of priority, | 
|  | * the number of priorities is greater than the # of rings.  The param is | 
|  | * renamed to better reflect this. | 
|  | */ | 
|  | #define MSM_PARAM_NR_RINGS   MSM_PARAM_PRIORITIES | 
|  |  | 
|  | struct drm_msm_param { | 
|  | __u32 pipe;           /* in, MSM_PIPE_x */ | 
|  | __u32 param;          /* in, MSM_PARAM_x */ | 
|  | __u64 value;          /* out (get_param) or in (set_param) */ | 
|  | __u32 len;            /* zero for non-pointer params */ | 
|  | __u32 pad;            /* must be zero */ | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * GEM buffers: | 
|  | */ | 
|  |  | 
|  | #define MSM_BO_SCANOUT       0x00000001     /* scanout capable */ | 
|  | #define MSM_BO_GPU_READONLY  0x00000002 | 
|  | /* Private buffers do not need to be explicitly listed in the SUBMIT | 
|  | * ioctl, unless referenced by a drm_msm_gem_submit_cmd.  Private | 
|  | * buffers may NOT be imported/exported or used for scanout (or any | 
|  | * other situation where buffers can be indefinitely pinned, but | 
|  | * cases other than scanout are all kernel owned BOs which are not | 
|  | * visible to userspace). | 
|  | * | 
|  | * In exchange for those constraints, all private BOs associated with | 
|  | * a single context (drm_file) share a single dma_resv, and if there | 
|  | * has been no eviction since the last submit, there are no per-BO | 
|  | * bookeeping to do, significantly cutting the SUBMIT overhead. | 
|  | */ | 
|  | #define MSM_BO_NO_SHARE      0x00000004 | 
|  | #define MSM_BO_CACHE_MASK    0x000f0000 | 
|  | /* cache modes */ | 
|  | #define MSM_BO_CACHED        0x00010000 | 
|  | #define MSM_BO_WC            0x00020000 | 
|  | #define MSM_BO_UNCACHED      0x00040000 /* deprecated, use MSM_BO_WC */ | 
|  | #define MSM_BO_CACHED_COHERENT 0x080000 | 
|  |  | 
|  | #define MSM_BO_FLAGS         (MSM_BO_SCANOUT | \ | 
|  | MSM_BO_GPU_READONLY | \ | 
|  | MSM_BO_NO_SHARE | \ | 
|  | MSM_BO_CACHE_MASK) | 
|  |  | 
|  | struct drm_msm_gem_new { | 
|  | __u64 size;           /* in */ | 
|  | __u32 flags;          /* in, mask of MSM_BO_x */ | 
|  | __u32 handle;         /* out */ | 
|  | }; | 
|  |  | 
|  | /* Get or set GEM buffer info.  The requested value can be passed | 
|  | * directly in 'value', or for data larger than 64b 'value' is a | 
|  | * pointer to userspace buffer, with 'len' specifying the number of | 
|  | * bytes copied into that buffer.  For info returned by pointer, | 
|  | * calling the GEM_INFO ioctl with null 'value' will return the | 
|  | * required buffer size in 'len' | 
|  | */ | 
|  | #define MSM_INFO_GET_OFFSET	0x00   /* get mmap() offset, returned by value */ | 
|  | #define MSM_INFO_GET_IOVA	0x01   /* get iova, returned by value */ | 
|  | #define MSM_INFO_SET_NAME	0x02   /* set the debug name (by pointer) */ | 
|  | #define MSM_INFO_GET_NAME	0x03   /* get debug name, returned by pointer */ | 
|  | #define MSM_INFO_SET_IOVA	0x04   /* set the iova, passed by value */ | 
|  | #define MSM_INFO_GET_FLAGS	0x05   /* get the MSM_BO_x flags */ | 
|  | #define MSM_INFO_SET_METADATA	0x06   /* set userspace metadata */ | 
|  | #define MSM_INFO_GET_METADATA	0x07   /* get userspace metadata */ | 
|  |  | 
|  | struct drm_msm_gem_info { | 
|  | __u32 handle;         /* in */ | 
|  | __u32 info;           /* in - one of MSM_INFO_* */ | 
|  | __u64 value;          /* in or out */ | 
|  | __u32 len;            /* in or out */ | 
|  | __u32 pad; | 
|  | }; | 
|  |  | 
|  | #define MSM_PREP_READ        0x01 | 
|  | #define MSM_PREP_WRITE       0x02 | 
|  | #define MSM_PREP_NOSYNC      0x04 | 
|  | #define MSM_PREP_BOOST       0x08 | 
|  |  | 
|  | #define MSM_PREP_FLAGS       (MSM_PREP_READ | \ | 
|  | MSM_PREP_WRITE | \ | 
|  | MSM_PREP_NOSYNC | \ | 
|  | MSM_PREP_BOOST | \ | 
|  | 0) | 
|  |  | 
|  | struct drm_msm_gem_cpu_prep { | 
|  | __u32 handle;         /* in */ | 
|  | __u32 op;             /* in, mask of MSM_PREP_x */ | 
|  | struct drm_msm_timespec timeout;   /* in */ | 
|  | }; | 
|  |  | 
|  | struct drm_msm_gem_cpu_fini { | 
|  | __u32 handle;         /* in */ | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Cmdstream Submission: | 
|  | */ | 
|  |  | 
|  | #define MSM_SYNCOBJ_RESET 0x00000001 /* Reset syncobj after wait. */ | 
|  | #define MSM_SYNCOBJ_FLAGS ( \ | 
|  | MSM_SYNCOBJ_RESET | \ | 
|  | 0) | 
|  |  | 
|  | struct drm_msm_syncobj { | 
|  | __u32 handle;     /* in, syncobj handle. */ | 
|  | __u32 flags;      /* in, from MSM_SUBMIT_SYNCOBJ_FLAGS */ | 
|  | __u64 point;      /* in, timepoint for timeline syncobjs. */ | 
|  | }; | 
|  |  | 
|  | /* The value written into the cmdstream is logically: | 
|  | * | 
|  | *   ((relocbuf->gpuaddr + reloc_offset) << shift) | or | 
|  | * | 
|  | * When we have GPU's w/ >32bit ptrs, it should be possible to deal | 
|  | * with this by emit'ing two reloc entries with appropriate shift | 
|  | * values.  Or a new MSM_SUBMIT_CMD_x type would also be an option. | 
|  | * | 
|  | * NOTE that reloc's must be sorted by order of increasing submit_offset, | 
|  | * otherwise EINVAL. | 
|  | */ | 
|  | struct drm_msm_gem_submit_reloc { | 
|  | __u32 submit_offset;  /* in, offset from submit_bo */ | 
|  | #ifdef __cplusplus | 
|  | __u32 _or;            /* in, value OR'd with result */ | 
|  | #else | 
|  | __u32 or;             /* in, value OR'd with result */ | 
|  | #endif | 
|  | __s32 shift;          /* in, amount of left shift (can be negative) */ | 
|  | __u32 reloc_idx;      /* in, index of reloc_bo buffer */ | 
|  | __u64 reloc_offset;   /* in, offset from start of reloc_bo */ | 
|  | }; | 
|  |  | 
|  | /* submit-types: | 
|  | *   BUF - this cmd buffer is executed normally. | 
|  | *   IB_TARGET_BUF - this cmd buffer is an IB target.  Reloc's are | 
|  | *      processed normally, but the kernel does not setup an IB to | 
|  | *      this buffer in the first-level ringbuffer | 
|  | *   CTX_RESTORE_BUF - only executed if there has been a GPU context | 
|  | *      switch since the last SUBMIT ioctl | 
|  | */ | 
|  | #define MSM_SUBMIT_CMD_BUF             0x0001 | 
|  | #define MSM_SUBMIT_CMD_IB_TARGET_BUF   0x0002 | 
|  | #define MSM_SUBMIT_CMD_CTX_RESTORE_BUF 0x0003 | 
|  | struct drm_msm_gem_submit_cmd { | 
|  | __u32 type;           /* in, one of MSM_SUBMIT_CMD_x */ | 
|  | __u32 submit_idx;     /* in, index of submit_bo cmdstream buffer */ | 
|  | __u32 submit_offset;  /* in, offset into submit_bo */ | 
|  | __u32 size;           /* in, cmdstream size */ | 
|  | __u32 pad; | 
|  | __u32 nr_relocs;      /* in, number of submit_reloc's */ | 
|  | union { | 
|  | __u64 relocs; /* in, ptr to array of submit_reloc's */ | 
|  | __u64 iova;   /* cmdstream address (for VM_BIND contexts) */ | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* Each buffer referenced elsewhere in the cmdstream submit (ie. the | 
|  | * cmdstream buffer(s) themselves or reloc entries) has one (and only | 
|  | * one) entry in the submit->bos[] table. | 
|  | * | 
|  | * As a optimization, the current buffer (gpu virtual address) can be | 
|  | * passed back through the 'presumed' field.  If on a subsequent reloc, | 
|  | * userspace passes back a 'presumed' address that is still valid, | 
|  | * then patching the cmdstream for this entry is skipped.  This can | 
|  | * avoid kernel needing to map/access the cmdstream bo in the common | 
|  | * case. | 
|  | */ | 
|  | #define MSM_SUBMIT_BO_READ             0x0001 | 
|  | #define MSM_SUBMIT_BO_WRITE            0x0002 | 
|  | #define MSM_SUBMIT_BO_DUMP             0x0004 | 
|  | #define MSM_SUBMIT_BO_NO_IMPLICIT      0x0008 | 
|  |  | 
|  | #define MSM_SUBMIT_BO_FLAGS            (MSM_SUBMIT_BO_READ | \ | 
|  | MSM_SUBMIT_BO_WRITE | \ | 
|  | MSM_SUBMIT_BO_DUMP | \ | 
|  | MSM_SUBMIT_BO_NO_IMPLICIT) | 
|  |  | 
|  | struct drm_msm_gem_submit_bo { | 
|  | __u32 flags;          /* in, mask of MSM_SUBMIT_BO_x */ | 
|  | __u32 handle;         /* in, GEM handle */ | 
|  | __u64 presumed;       /* in/out, presumed buffer address */ | 
|  | }; | 
|  |  | 
|  | /* Valid submit ioctl flags: */ | 
|  | #define MSM_SUBMIT_NO_IMPLICIT   0x80000000 /* disable implicit sync */ | 
|  | #define MSM_SUBMIT_FENCE_FD_IN   0x40000000 /* enable input fence_fd */ | 
|  | #define MSM_SUBMIT_FENCE_FD_OUT  0x20000000 /* enable output fence_fd */ | 
|  | #define MSM_SUBMIT_SUDO          0x10000000 /* run submitted cmds from RB */ | 
|  | #define MSM_SUBMIT_SYNCOBJ_IN    0x08000000 /* enable input syncobj */ | 
|  | #define MSM_SUBMIT_SYNCOBJ_OUT   0x04000000 /* enable output syncobj */ | 
|  | #define MSM_SUBMIT_FENCE_SN_IN   0x02000000 /* userspace passes in seqno fence */ | 
|  | #define MSM_SUBMIT_FLAGS                ( \ | 
|  | MSM_SUBMIT_NO_IMPLICIT   | \ | 
|  | MSM_SUBMIT_FENCE_FD_IN   | \ | 
|  | MSM_SUBMIT_FENCE_FD_OUT  | \ | 
|  | MSM_SUBMIT_SUDO          | \ | 
|  | MSM_SUBMIT_SYNCOBJ_IN    | \ | 
|  | MSM_SUBMIT_SYNCOBJ_OUT   | \ | 
|  | MSM_SUBMIT_FENCE_SN_IN   | \ | 
|  | 0) | 
|  |  | 
|  | /* Each cmdstream submit consists of a table of buffers involved, and | 
|  | * one or more cmdstream buffers.  This allows for conditional execution | 
|  | * (context-restore), and IB buffers needed for per tile/bin draw cmds. | 
|  | */ | 
|  | struct drm_msm_gem_submit { | 
|  | __u32 flags;          /* MSM_PIPE_x | MSM_SUBMIT_x */ | 
|  | __u32 fence;          /* out (or in with MSM_SUBMIT_FENCE_SN_IN flag) */ | 
|  | __u32 nr_bos;         /* in, number of submit_bo's */ | 
|  | __u32 nr_cmds;        /* in, number of submit_cmd's */ | 
|  | __u64 bos;            /* in, ptr to array of submit_bo's */ | 
|  | __u64 cmds;           /* in, ptr to array of submit_cmd's */ | 
|  | __s32 fence_fd;       /* in/out fence fd (see MSM_SUBMIT_FENCE_FD_IN/OUT) */ | 
|  | __u32 queueid;        /* in, submitqueue id */ | 
|  | __u64 in_syncobjs;    /* in, ptr to array of drm_msm_syncobj */ | 
|  | __u64 out_syncobjs;   /* in, ptr to array of drm_msm_syncobj */ | 
|  | __u32 nr_in_syncobjs; /* in, number of entries in in_syncobj */ | 
|  | __u32 nr_out_syncobjs; /* in, number of entries in out_syncobj. */ | 
|  | __u32 syncobj_stride; /* in, stride of syncobj arrays. */ | 
|  | __u32 pad;            /*in, reserved for future use, always 0. */ | 
|  | }; | 
|  |  | 
|  | #define MSM_VM_BIND_OP_UNMAP	0 | 
|  | #define MSM_VM_BIND_OP_MAP	1 | 
|  | #define MSM_VM_BIND_OP_MAP_NULL	2 | 
|  |  | 
|  | #define MSM_VM_BIND_OP_DUMP	1 | 
|  | #define MSM_VM_BIND_OP_FLAGS ( \ | 
|  | MSM_VM_BIND_OP_DUMP | \ | 
|  | 0) | 
|  |  | 
|  | /** | 
|  | * struct drm_msm_vm_bind_op - bind/unbind op to run | 
|  | */ | 
|  | struct drm_msm_vm_bind_op { | 
|  | /** @op: one of MSM_VM_BIND_OP_x */ | 
|  | __u32 op; | 
|  | /** @handle: GEM object handle, MBZ for UNMAP or MAP_NULL */ | 
|  | __u32 handle; | 
|  | /** @obj_offset: Offset into GEM object, MBZ for UNMAP or MAP_NULL */ | 
|  | __u64 obj_offset; | 
|  | /** @iova: Address to operate on */ | 
|  | __u64 iova; | 
|  | /** @range: Number of bites to to map/unmap */ | 
|  | __u64 range; | 
|  | /** @flags: Bitmask of MSM_VM_BIND_OP_FLAG_x */ | 
|  | __u32 flags; | 
|  | /** @pad: MBZ */ | 
|  | __u32 pad; | 
|  | }; | 
|  |  | 
|  | #define MSM_VM_BIND_FENCE_FD_IN		0x00000001 | 
|  | #define MSM_VM_BIND_FENCE_FD_OUT	0x00000002 | 
|  | #define MSM_VM_BIND_FLAGS ( \ | 
|  | MSM_VM_BIND_FENCE_FD_IN | \ | 
|  | MSM_VM_BIND_FENCE_FD_OUT | \ | 
|  | 0) | 
|  |  | 
|  | /** | 
|  | * struct drm_msm_vm_bind - Input of &DRM_IOCTL_MSM_VM_BIND | 
|  | */ | 
|  | struct drm_msm_vm_bind { | 
|  | /** @flags: in, bitmask of MSM_VM_BIND_x */ | 
|  | __u32 flags; | 
|  | /** @nr_ops: the number of bind ops in this ioctl */ | 
|  | __u32 nr_ops; | 
|  | /** @fence_fd: in/out fence fd (see MSM_VM_BIND_FENCE_FD_IN/OUT) */ | 
|  | __s32 fence_fd; | 
|  | /** @queue_id: in, submitqueue id */ | 
|  | __u32 queue_id; | 
|  | /** @in_syncobjs: in, ptr to array of drm_msm_gem_syncobj */ | 
|  | __u64 in_syncobjs; | 
|  | /** @out_syncobjs: in, ptr to array of drm_msm_gem_syncobj */ | 
|  | __u64 out_syncobjs; | 
|  | /** @nr_in_syncobjs: in, number of entries in in_syncobj */ | 
|  | __u32 nr_in_syncobjs; | 
|  | /** @nr_out_syncobjs: in, number of entries in out_syncobj */ | 
|  | __u32 nr_out_syncobjs; | 
|  | /** @syncobj_stride: in, stride of syncobj arrays */ | 
|  | __u32 syncobj_stride; | 
|  | /** @op_stride: sizeof each struct drm_msm_vm_bind_op in @ops */ | 
|  | __u32 op_stride; | 
|  | union { | 
|  | /** @op: used if num_ops == 1 */ | 
|  | struct drm_msm_vm_bind_op op; | 
|  | /** @ops: userptr to array of drm_msm_vm_bind_op if num_ops > 1 */ | 
|  | __u64 ops; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | #define MSM_WAIT_FENCE_BOOST	0x00000001 | 
|  | #define MSM_WAIT_FENCE_FLAGS	( \ | 
|  | MSM_WAIT_FENCE_BOOST | \ | 
|  | 0) | 
|  |  | 
|  | /* The normal way to synchronize with the GPU is just to CPU_PREP on | 
|  | * a buffer if you need to access it from the CPU (other cmdstream | 
|  | * submission from same or other contexts, PAGE_FLIP ioctl, etc, all | 
|  | * handle the required synchronization under the hood).  This ioctl | 
|  | * mainly just exists as a way to implement the gallium pipe_fence | 
|  | * APIs without requiring a dummy bo to synchronize on. | 
|  | */ | 
|  | struct drm_msm_wait_fence { | 
|  | __u32 fence;          /* in */ | 
|  | __u32 flags;          /* in, bitmask of MSM_WAIT_FENCE_x */ | 
|  | struct drm_msm_timespec timeout;   /* in */ | 
|  | __u32 queueid;         /* in, submitqueue id */ | 
|  | }; | 
|  |  | 
|  | /* madvise provides a way to tell the kernel in case a buffers contents | 
|  | * can be discarded under memory pressure, which is useful for userspace | 
|  | * bo cache where we want to optimistically hold on to buffer allocate | 
|  | * and potential mmap, but allow the pages to be discarded under memory | 
|  | * pressure. | 
|  | * | 
|  | * Typical usage would involve madvise(DONTNEED) when buffer enters BO | 
|  | * cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache. | 
|  | * In the WILLNEED case, 'retained' indicates to userspace whether the | 
|  | * backing pages still exist. | 
|  | */ | 
|  | #define MSM_MADV_WILLNEED 0       /* backing pages are needed, status returned in 'retained' */ | 
|  | #define MSM_MADV_DONTNEED 1       /* backing pages not needed */ | 
|  | #define __MSM_MADV_PURGED 2       /* internal state */ | 
|  |  | 
|  | struct drm_msm_gem_madvise { | 
|  | __u32 handle;         /* in, GEM handle */ | 
|  | __u32 madv;           /* in, MSM_MADV_x */ | 
|  | __u32 retained;       /* out, whether backing store still exists */ | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Draw queues allow the user to set specific submission parameter. Command | 
|  | * submissions specify a specific submitqueue to use.  ID 0 is reserved for | 
|  | * backwards compatibility as a "default" submitqueue. | 
|  | * | 
|  | * Because VM_BIND async updates happen on the CPU, they must run on a | 
|  | * virtual queue created with the flag MSM_SUBMITQUEUE_VM_BIND.  If we had | 
|  | * a way to do pgtable updates on the GPU, we could drop this restriction. | 
|  | */ | 
|  |  | 
|  | #define MSM_SUBMITQUEUE_ALLOW_PREEMPT	0x00000001 | 
|  | #define MSM_SUBMITQUEUE_VM_BIND	0x00000002  /* virtual queue for VM_BIND ops */ | 
|  |  | 
|  | #define MSM_SUBMITQUEUE_FLAGS		    ( \ | 
|  | MSM_SUBMITQUEUE_ALLOW_PREEMPT | \ | 
|  | MSM_SUBMITQUEUE_VM_BIND | \ | 
|  | 0) | 
|  |  | 
|  | /* | 
|  | * The submitqueue priority should be between 0 and MSM_PARAM_PRIORITIES-1, | 
|  | * a lower numeric value is higher priority. | 
|  | */ | 
|  | struct drm_msm_submitqueue { | 
|  | __u32 flags;   /* in, MSM_SUBMITQUEUE_x */ | 
|  | __u32 prio;    /* in, Priority level */ | 
|  | __u32 id;      /* out, identifier */ | 
|  | }; | 
|  |  | 
|  | #define MSM_SUBMITQUEUE_PARAM_FAULTS   0 | 
|  |  | 
|  | struct drm_msm_submitqueue_query { | 
|  | __u64 data; | 
|  | __u32 id; | 
|  | __u32 param; | 
|  | __u32 len; | 
|  | __u32 pad; | 
|  | }; | 
|  |  | 
|  | #define DRM_MSM_GET_PARAM              0x00 | 
|  | #define DRM_MSM_SET_PARAM              0x01 | 
|  | #define DRM_MSM_GEM_NEW                0x02 | 
|  | #define DRM_MSM_GEM_INFO               0x03 | 
|  | #define DRM_MSM_GEM_CPU_PREP           0x04 | 
|  | #define DRM_MSM_GEM_CPU_FINI           0x05 | 
|  | #define DRM_MSM_GEM_SUBMIT             0x06 | 
|  | #define DRM_MSM_WAIT_FENCE             0x07 | 
|  | #define DRM_MSM_GEM_MADVISE            0x08 | 
|  | /* placeholder: | 
|  | #define DRM_MSM_GEM_SVM_NEW            0x09 | 
|  | */ | 
|  | #define DRM_MSM_SUBMITQUEUE_NEW        0x0A | 
|  | #define DRM_MSM_SUBMITQUEUE_CLOSE      0x0B | 
|  | #define DRM_MSM_SUBMITQUEUE_QUERY      0x0C | 
|  | #define DRM_MSM_VM_BIND                0x0D | 
|  |  | 
|  | #define DRM_IOCTL_MSM_GET_PARAM        DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param) | 
|  | #define DRM_IOCTL_MSM_SET_PARAM        DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SET_PARAM, struct drm_msm_param) | 
|  | #define DRM_IOCTL_MSM_GEM_NEW          DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new) | 
|  | #define DRM_IOCTL_MSM_GEM_INFO         DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_INFO, struct drm_msm_gem_info) | 
|  | #define DRM_IOCTL_MSM_GEM_CPU_PREP     DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_PREP, struct drm_msm_gem_cpu_prep) | 
|  | #define DRM_IOCTL_MSM_GEM_CPU_FINI     DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_GEM_CPU_FINI, struct drm_msm_gem_cpu_fini) | 
|  | #define DRM_IOCTL_MSM_GEM_SUBMIT       DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_SUBMIT, struct drm_msm_gem_submit) | 
|  | #define DRM_IOCTL_MSM_WAIT_FENCE       DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_WAIT_FENCE, struct drm_msm_wait_fence) | 
|  | #define DRM_IOCTL_MSM_GEM_MADVISE      DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_MADVISE, struct drm_msm_gem_madvise) | 
|  | #define DRM_IOCTL_MSM_SUBMITQUEUE_NEW    DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_NEW, struct drm_msm_submitqueue) | 
|  | #define DRM_IOCTL_MSM_SUBMITQUEUE_CLOSE  DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_CLOSE, __u32) | 
|  | #define DRM_IOCTL_MSM_SUBMITQUEUE_QUERY  DRM_IOW (DRM_COMMAND_BASE + DRM_MSM_SUBMITQUEUE_QUERY, struct drm_msm_submitqueue_query) | 
|  | #define DRM_IOCTL_MSM_VM_BIND          DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_VM_BIND, struct drm_msm_vm_bind) | 
|  |  | 
|  | #if defined(__cplusplus) | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #endif /* __MSM_DRM_H__ */ |